/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "dma.h"
#include "i2c.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
//#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "ssd1306.h"
#include "ssd1306_fonts.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
uint8_t i,m,m2,sum=0;

uint8_t dma_recbuf[20];
uint8_t	 usar_txcbuf1[20] ;
uint8_t	 RGB[3] = {0,0,0};

char buf[20];
char wifi[45];

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void WIFI_int(void);
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */
  

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_I2C1_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();
  /* USER CODE BEGIN 2 */
  HAL_UART_Receive_DMA(&huart1,(uint8_t *)dma_recbuf,20);

  WIFI_int();   //初始化ESP8266

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);

		sprintf(buf, "RGB: %X,%X,%X", RGB[0],RGB[1],RGB[2]);
		ssd1306_SetCursor(10,10);
		ssd1306_WriteString(buf,Font_7x10,White);
		ssd1306_UpdateScreen();

		HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_SET);

		sprintf(wifi,"AT+CIPSEND=1,15\r\n");
		HAL_UART_Transmit(&huart2,wifi,22,0xffff);
		HAL_Delay(200);

		sprintf(wifi,"%x%x%x",RGB[0],RGB[1],RGB[2]);
		HAL_UART_Transmit(&huart2,wifi,10,0xffff);
		HAL_Delay(100);


  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
		if(huart->Instance == USART1)
		{
			memcpy(usar_txcbuf1,dma_recbuf,20); //内存复制
			for ( i = 0; i < 20; i++)
			{
				if (usar_txcbuf1[i] == 0x5a)
				{
					if (usar_txcbuf1[i+1] == 0x5a)
					{
						m = i;
						break;
					}
				}
			}
			m2 = m + 4;

				 for ( i = 0; i < 3; i++)
				{
					RGB[i] = usar_txcbuf1[m2+i];
				}


		}

}

void  WIFI_int(void)
{
	sprintf(wifi,"AT+CWMODE=2\r\n"); HAL_UART_Transmit(&huart2,wifi,22,0xffff);

  	ssd1306_Init();
	HAL_Delay(200);

	ssd1306_Fill(Black);
	ssd1306_UpdateScreen();
	HAL_Delay(200);

	sprintf(wifi,"AT+CIPMUX=1\r\n"); HAL_UART_Transmit(&huart2,wifi,22,0xffff);

	ssd1306_SetCursor(23,23);
	ssd1306_WriteString("Begin",Font_11x18,White);//
	ssd1306_UpdateScreen();
	HAL_Delay(400);

	sprintf(wifi,"AT+CIPSERVER=1\r\n"); HAL_UART_Transmit(&huart2,wifi,22,0xffff);
	ssd1306_Fill(Black);
	ssd1306_UpdateScreen();
	HAL_Delay(400);

	sprintf(wifi,"AT+CIPSTART=1,\"TCP\",\"192.168.4.2\",8080\r\n");
	HAL_UART_Transmit(&huart2,wifi,45,0xffff);
	HAL_Delay(800);
}


/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
